(Recover/Retrieve Deleted Data from Samsung Galaxy)
China in recent days about the Samsung Galaxy S6 of three anti-edition S6 Active news gradually increased, it is certain that the aircraft will have a high level of IP68 waterproof. A profile now leaked online, the file appears Samsung S6 Active this new machine will use 1440 × 2560 resolution display.

In fact, Samsung Galaxy Galaxy S6 and S6 Edge are used 2K-level display, Samsung S6 Active has the same screen resolution is also a great possibility. News from foreign media that Samsung S6 Active will be officially released later this month, so stay tuned.

How to Recover Lost Data Contacts Photos from Samsung S after Firmware Installation

I bought an unlocked Telstra Samsung Galaxy S4 4G, and it's loaded with some Telstra software. I wanted to get rid of those, so I loaded up Kies and it gives me the option to perform a "Firmware upgrade and initialisation". I don't want it deleting everything off my phone and I don't want to do anything to my phone to mess with it so I wanted to be absolutely certain I understood what would happen. I tried googling this subject but couldn't find any useful information. And lost any contacts, videos, photos, apps, call history, whatsapp data from Samsung Galaxy s4 after firmware installation.

Firmware Update (Android OS)

An Android update will normally attempt to retain ALL user data, settings, and (custom loaded) applications. But this is only true for minor update, as major changes will make your existing applications incompatible. For each application, the vendor may provide an update with support for the new version to convert (or import) any old data.

Exceptions: If you are attempting a major Android update (eg. from 3.2 to 4.0+) this will very likely not retain (in any useful form) any of your settings.

Your specific case: If you were using KIES to update Android from 4.0 to 4.0.4 (or similar) this should be as painless as OTA (over-the-air) updates (prompted on your phone). However, it is not clear from your description what type of 'firmware' (Android or ROM) it is suggesting.

The development of Android OS is so fast, many Android devices get a new firmware update gradually. Recently, a number of Android devices will get Android 5.0.1 Lollipop update from official providers. For example, Google Nexus 7 and 10 Moto X , and there is some news said that Samsung Galaxy S4/S3/S5 and Samsung Galaxy Note 3/4 will get Android 5.0.1 Lollipop soon.

So, how to recover lost data from Samsung Galaxy S2/S3/S4/S5/S6 after firmware installation?

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